4572721132 has 48 divisors (see below), whose sum is σ = 9847595520. Its totient is φ = 1813185792.

The previous prime is 4572721129. The next prime is 4572721147. The reversal of 4572721132 is 2311272754.

It is a super-2 number, since 2×4572721132² = 41819557102078722848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53328 + ... + 109495.

It is an arithmetic number, because the mean of its divisors is an integer number (205158240).

Almost surely, 2^4572721132 is an apocalyptic number.

It is an amenable number.

4572721132 is an abundant number, since it is smaller than the sum of its proper divisors (5274874388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4572721132 is a wasteful number, since it uses less digits than its factorization.

4572721132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162910 (or 162908 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 4572721132 is about 67621.8983170393. The cubic root of 4572721132 is about 1659.8094729799.

Adding to 4572721132 its reverse (2311272754), we get a palindrome (6883993886).

The spelling of 4572721132 in words is "four billion, five hundred seventy-two million, seven hundred twenty-one thousand, one hundred thirty-two".